Biosynthesis of mycophenolic acid. Oxidation of 6-farnesyl-5,7-dihydroxy-4-methylphthalide in a cell-free preparation from Penicillium brevicompactum
Abstract
The conversion of 6-farnesyl-5,7-dihydroxy-4-methylphthalide (5) into mycophenolic acid (1) proceeds through the hydroxy-ketone (11) by oxidation of the central double bond.